patches/binutils/2.21.1a/300-012_check_ldrunpath_length.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:46:47 2011 +0200 (2011-07-17)
changeset 2892 aa934ec4b4ee
permissions -rw-r--r--
cc/gcc: add the backend/frontend infra for final gcc

Currently, we issue the bare-metal compiler from the pass_1 & pass_2
core compilers, because the final gcc breaks while doing so.

This implies we have to build some libces during the start_files step,
instead of the standard libc step. This is the case for newlib.

By adding a backend/frontend infra to the final gcc, we can abstract
what backend to call: the standard backend for non-bare-metal gcc,
and the core backend for bare-metal.

This patch is just an no-op, it just adds the final backend and
frontend without changing the way bare-metal is built, to come in a
subsequent patch.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
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diff -durN binutils-2.21.1.orig/ld/emultempl/elf32.em binutils-2.21.1/ld/emultempl/elf32.em
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--- binutils-2.21.1.orig/ld/emultempl/elf32.em	2011-06-27 09:39:14.000000000 +0200
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+++ binutils-2.21.1/ld/emultempl/elf32.em	2011-09-12 13:39:08.808908274 +0200
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@@ -1272,6 +1272,8 @@
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 	      && command_line.rpath == NULL)
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 	    {
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 	      lib_path = (const char *) getenv ("LD_RUN_PATH");
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+	      if ((lib_path) && (strlen (lib_path) == 0))
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+	      	lib_path = NULL;
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 	      if (gld${EMULATION_NAME}_search_needed (lib_path, &n,
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 						      force))
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 		break;
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@@ -1499,6 +1501,8 @@
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   rpath = command_line.rpath;
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   if (rpath == NULL)
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     rpath = (const char *) getenv ("LD_RUN_PATH");
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+  if ((rpath) && (strlen (rpath) == 0))
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+  	rpath = NULL;
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   for (abfd = link_info.input_bfds; abfd; abfd = abfd->link_next)
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     if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)